Window ventilation shield



T. B. LEWIS.

WINDOW VENTILATION SHIELD.

APPLICATION FILED IVAN-6, 1922.

lAaggl 12 I Patented 060.17, 1922.

Patented Uct. 17, 1922.

onrrso stares THOMAS B. LEWIS, OF ALLIANCE, OHIO.

WINDOW VENTILATION SHIELD.

Application filed January 6. 1922.

To all whom it may concern:

Be it known that I. THOMAS E. Lnwi's, a citizen of the United States,residing at Alliance. in the county of Stark and State of Ohio, haveinvented a new and useful lVin dow Ventilation Shield, of which thefollowing is a specification.

This invention relates to improvements in window shields such as areplaced in the lower portion of a window frame allowing the window to beopened to ventilate the room without permitting a direct draft upon theoccupants of the room.

The objects of the invention are to provide a shield of this characterwhich may be formed of sheet metal or the like and comprising twotelescoping sections making the shield readily adaptable to windows ofvarious widths, spring clamping means being -arried by the shield. forattaching the same to the window sill, the shield being so constructedthat the sash may be lowered to any desired level beneath the top of theshield.

The above and other objects may be attained by providing a constructionof window shield such as is illustrated in the ac conn anying drawing.in. which Figure l is a perspective view of a win dow shield embodyingthe invention;

Fig. 2, a cross sectional view through a portion of a window casing andsash showing a slightly modified form of shield mounted thereon; and

Fig. 3, a view similar to Fig. 2 showing a slightly modified form ofclamping means.

Similar numerals of reference indicate -orresp(mding parts throughoutthe drawmg.

A portion of the window casing is illustrated at l, the sill at 3 andthe sash at 3, all of which parts may be of any usual form. The shieldwhich embodies the present invention may be formed of sheet metal,- thebody portion of which comprises two telescoping sections -l and 5, theupper and lower edges of the section at being preferably folded backupon the body portion thereof to provide reinforced edges 6 which willbe readily slidable within the channel grooves 7 provided at the upperand lower edges of the section Each section of the shield is provided atits outer end with a triangular wall 8. preferably reinforced at itsedge with the folded portion 0. these triangular walls extending SerialN0. 527,320.

rearwardly, the rear edges thereof being vertical and parallel with. thesash.

hen placed in position upon the window, the lower edges of the sections4 and 5 extend beneath the window sash as shown in Figs. 2 and 3, whilethe vertical edge of each triangular wall 8 is parallelwith the innerface of the sasl1,thus permitting the sash to be lowered into engagementwith the lower end portion of the body of the shield.

For the purpose of securing the shield in place at the window, eachsection is provided with an inverted, V-shaped clamping memberpreferably formed of spring material and comprising the inclined leg 10having the hooked end 11 for engagement with the outer edge of the silland provided with the off-set portion 12 to accommodate the clampinglink 13 which is located around the substantially vertical leg 14:provided at its lower end with the hooked portion 15 for engagement withthe inner edge of the sill, a projection 16 being provided at the upperend of said hook comprising a rest to engage the top of the sill.

In F ig. 2 is shown a slightly modified forn'i of clamping device inwhich the leg 10 is provided with a greater off-set 12. thus reducingthe angle between the legs of the clan'iping member in order that thelink may more securely grip the same in clamped position. The remainingportions of the construction shown in Fig. 2 are the same as those abovedescribed.

In Fig. 3 a still further modification of the clamping device, in whichthe link is eliminated, is shown, the legs 10" and let" of the clampingdevice being connected at their upper extremities by the circular springportion l7 designed to provide suflicient sprlng i in the clamp to causethe same to snugly engage opposite edges of the sill and hold the shieldin position thereon.

The remaining portions of the device shown in Fig. 3, are similar to theconstruction illustrated in Fig. l and above described.

It will be evident that a shield is provided which may be readilyadjusted to accommodate windows of various widths and which may bequickly and easily secured in place by clamping the same to the windowsill, the device being so mnstructed that when socured in position upona window, the shield does not form an obstruction to closing the sash,thus permitting of any desired amount of ventilation. Y

l. A Window shield comprising an 7 inclined body portion, triangular endWalls,

shield comprising a pair of hooked legs for engegen'ient with oppositeedges or a W111- doW sill, and means for drawing said legs toward eachother.

A Window shield comprising an inelined body portlon, triangular endWalls thereon and a clamping member upon the shield comln'ising apair ofhooked legs for engzigenlent Withopposite QClgGSOl a window S111, and alink for drawing Sd-lCl. legs toward each other.

'ri-ioinis B. LEWIS.

